# MQTT Terminal Pro vs JSON Data Generator

The clearest difference is in-app purchases: JSON Data Generator at none against MQTT Terminal Pro's 1. JSON Data Generator also leads on ads (none vs shown). MQTT Terminal Pro's advantage is update cadence (every 6 months vs every 37 months) and chart position (#186 vs unranked). On price there is nothing between them.

MQTT Terminal Pro costs $0.99 and JSON Data Generator $0.99 up front. MQTT Terminal Pro sells 1 one-off in-app purchase. JSON Data Generator asks for nothing beyond the download.

MQTT Terminal Pro ships an update every 6 months, JSON Data Generator every 37 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | MQTT Terminal Pro | JSON Data Generator |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mqtt-terminal-pro/id1469009452/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 months** | Every 37 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#186** | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Gopi Gadhiya](https://appshunter.io/developer/1387816354) | [Konstantin Adamov](https://appshunter.io/developer/1082896610) |

## What reviewers say

### MQTT Terminal Pro

[App page](https://appshunter.io/ios/app/mqtt-terminal-pro/id1469009452)

**Currently charting:** #186 Top Paid · Developer Tools (US App Store)

This application allows for testing the MQTT pub/sub protocol. Connect to an MQTT broker to send and receive messages, enabling control of IoT devices and monitoring of sensors. It offers features for custom buttons, timed commands, and data monitoring in ASCII or HEX.

**Highlights:** Save broker list, Separate subscribe/publish panels, Customizable publish buttons, Monitor data as ASCII or HEX, Auto-send commands at intervals, Send log files

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


### JSON Data Generator

[App page](https://appshunter.io/ios/app/json-data-generator/id1519924117)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MQTT Terminal Pro free?

MQTT Terminal Pro costs $0.99, and also offers in-app purchases.

### Is JSON Data Generator free?

JSON Data Generator costs $0.99, with no in-app purchases.

### Do MQTT Terminal Pro or JSON Data Generator have ads?

MQTT Terminal Pro shows ads; JSON Data Generator does not.

### Which is updated more often, MQTT Terminal Pro or JSON Data Generator?

MQTT Terminal Pro ships an update every 6 months, and JSON Data Generator every 37 months. Most recently, MQTT Terminal Pro was updated on October 7, 2026 and JSON Data Generator on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*